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Compact structure of UHF band RFID tag antenna mountable on metallic objects

✍ Scribed by Byungje Lee; Byunggil Yu

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 302 KB
Volume: 50
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.23031

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✦ Synopsis

Abstract

A new type of a compact tag antenna, which can be effectively mounted on metallic objects, is proposed for UHF band RFID systems. The proposed antenna consists of a simple microstrip path and feed line, and it is fabricated on a very thin (1.6 mm) subtrate compared with previous works. The impedance of the proposed antenna can be easily adjusted to match the various impedance values of tag chips by simply changing the length of the feed line only. The antenna is analyzed by simulations by Ansoft HFSS software, and the measured results based on backscattering method are provided. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 232–234, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23031

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## Abstract A novel UHF band RFID tag antenna, which can be effectively mounted on metallic objects, is presented. Using the inductively coupled feeding technique, the proposed antenna consists of two symmetric shorted radiating elements and feeding loop. The feeding loop is excited so that the cur